Means for securing thread ends on winding-machines



- A. F. MCCOLLUM. MEANS FOR SECURING THREAD ENDS 0N WINDING MACHINES.

` `APPLICATION FILED JUNE 2B. 1918. 1,333,863.

A. F. McCOLLUM.

-MEANs FoR sEcumNG THREAD ENDS oN wmnm MACHINES.

APPLICATION FILED IUNE28| |918- 1,333,863.

Patented Mar. 16, 1920 2 SHEETS-SHEET 2.

Fg. Z

'UNITED STATES PATENT OFFICE.

.ALFRED F. MCCOLLUM, 0F BLOOMSBUR-G, PENNSYLVANIA, ASSIGNOR 0F THREE-FIFTHS T0 JAMES MAG-EE, 2D, GF BLOOMSBURG, PENNSYLVANIA...

MEANS Fon SECURING THREAD ENDS. 0N winnmivrncrrirms.

1,333,863. Specification 0f Letters Patent. Patented Mar. 16, 1920.

(h'ig'inal application filed October 3, 1917, Serial No. 194,612. Divided and this application led: .Tune 28,

To all whom t mag/concern Be it known that I, ALFRED F. McCoLLUM, a citi-zen of the United States, residing in Bloomsburg, Columbia county, State of Pennsylvania, have invented Means for Securing Thread Ends on lVinding-h/Iachines, (being a division of my Patent No. 1,817,515 granted Sept. 30, 1919 on my applicationl for patent filed October 3, 1917 Serial No. 194,612), of which the following is a speciicat'ion.

One object of my invention is to `provide a bcbbin winder, suoli as that described and claimed in my Patent llo. 1,317,515, granted Sept. 30, 1919-, upon an application filed October f3, 1917, Serial No. 194,612, with a novel arrangement of parts for insuring the certain and quick engagement of a thread end with the spool at the beginning of the winding operation and that without the likelihood of causing said end to knot or become so entangled with the body of the thread as to fail to'freely come away from thev spool when the latter is employed in the shuttle of a loom, this desirable end being secured by reason of a novel arrangement of thread directing bar relatively to the spool.

These objects and other advantageous ends I secure as hereinafter set forth, reference being had to the accompanying drawings in which:

Figure 1 is a plan showing my invention as applied to a bobbin Winder;

Fig. 2isa vertical section on the line 2-2, Fig. l; and

Fig. -3 is a fragmentary end elevation of certain of the parts shown in Fig. 1.

Tn the above drawings 3 represents a supporting structure such as a portion of the frame of a'bobbin winder in which a standard or bracket 24 projects upwardly and provides a bearing for a horizontal spindle 26 driven by any desired and suitable means not shown. Adjacent the outer face of said standard there is fixed to the spindle 26 a leather covered driving roll or pulley 29 over which extends a frame work'consisting v of a. rod 31, a bar 32 preferably parallel to said rod having its end' 53 turned at right angles, and a secondrod 34 extending between the extremity of said end and the similarly formed opposite end of said bar '(not shown). The rod 31 with the bar 32 Serial No. 242,472.

is rigidly xed :to the standard 24 also' providing a bearing for a longitudinally slidable rod 35 which has fixed to it a head 36 carrying a thread guide 37. The rod 34 has fixed to it opposite the roller 29 a porcelain or other smooth, hard thread: guide 38.

Therod 31 has loosely mounted on it a movable frame consisting of a pair of substantially parallel arms 39 and 40 rigidly connected to or formed integral with a memu ber 41 extending at right angles to them; This member projects beyond the arm 4'() and is forked to provide bearings 42 and 455 for a short spindle 44 to one of Whose ends is fixed a collar 45 and an arm 46-constitut ing an operating handle.

The collar has projecting radially from it abobbin spindle 47 and the short spindle 44 is acted on by a spring 48 mounted on it between the bearings 42 and 43, inl such manner that it tends to turn into a position in which the bobbin spindle is elevated at an angle of about G00 to the horizontal. For limiting this movement, I provide k,autransverse pin 49 in the rear end of the spindle 44 and also a pin 50 projecting rearwardly from the bearing 42 in position to be engaged by said first pin when the bobbin spindle occupies its desired elevated position.

IThe arm 39 ofthis spindle-carrying frame projects forwardly beyond the member 41 and the under side of its front extremity has a transverse recess 51 capable of receiving the free end of the bobbin spindle 47 although it is to be particularly noted that this latter is so set in the collar 45 or is otherwise so supported that it normally tends to occupy a position on lthe forward side ofthe line yof said recess..

The movable frame has fixed to it Yon or adjacent the arm 39 a plate 52, downwardly and forwardly curved to one side of and below the recess 51, beyond which it projects for a distance sufficient to engage and limit the downward movement of the bobbin spindle 47.

The bar 32 is preferably though not necessarily, of rectangular section and has a straight edge extending immediately adjacent and parallel With the cylindrical surface of the driving roll 29 Which is preferably covered with leather or other equivalent material having a comparatively high coehcient of friction. The flat face of this bar extends outwardly from the surface of the roll and on it, opposite the end of the arm 39 'is mounted an inverted, U-shaped body of strip material 53 designed to guide the end of the bobbin spindle under the extremity of said arm and to normally retain it in the recess thereof when it is lowered.

A knife blade 54 is preferably mounted on the rod 32 and for the sake of convenience I have shown it as held in place by the same bolt which retains the guide piece 53 in position.

In order to evenly distribute the thread upon a bobbin 59 mounted on a spindle 47, the rod 35 with its yarn guide 37 is reciprocated by any suitable device as said bobbin is turned.

Under condi-tions of use, the end of the thread fromY a supply bobbin, 'after being run through a tension device' forming no part of the present invention, is brought up around the porcelain or other guide 38 and is passed thence through the yarn guide 37.

; An empty bobbin spool 59 is placed on the spindle 47 while this is held-by its spring 48 in an upwardly inclined position andthe driving roller 29 is turned by any suitable source of power. The spool is thenPressed downwardly until an arm on the member 41 passes up and over a projection 61 on a spring-controlled lever 62, whereupon the free end of the bobbin spindle 47 is brought into engagement with the plate 52 immediately infront of the arm 39 as the frame 39-40-41 is swung downwardly. The member 53 thereupon acts upon the free end ofthe bobbin spindle to force this rearwardly, so that when the cylindrical Vsur- Y face of the bobbin s ool comes into engage-- ment with the sur ace of the roll 39, the spindle endhas been bent to the rear to an extent sufficient to cause it to enter the recess 51 in the arm 39.

The end of the thread from the yarn guide is now introduced between the bobbin spool 59 and the member 41, the shaft 26 being turned in a direction such as to cause said thread to be at once drawn in between the driving pulley 29 and said spool. Since the eoacting surfaces of these two elements are moving at practically the same speed, the thread end after passing between them, is directed toward the bar32 without at lirst clinging either to the snool or to the i: n l

pulley. Owing to the high speed at which these elements are operated, bodies of air adjacent their coacting surfaces are put in motion by and moved with them but by mounting the bar 32 across and immediately adjacent the surface of the pulley 29, the

air current moving with it away from the spool is given a sharp upward direction. This air current, with that set in motion by the spool, causes the thread end to be first turned upwardly between the spool and the bar 32 and thereafter so curved as to cause it to pass around the spool until it strikes the pulley. Thereafter it again passes between the latter and the spool and is shortly overlaid by succeeding convolu tions of the thread so that it is almost immediately held fast and is thereafter wound on the spool as said roll continues to turn, being evenly distributed by the reciprocation of the rod.

An important feature of my invention c resides in the mounting of the bar or rod 3 2 immediately adjacent the side of the bobbin spool distant from that to which the thread ond is first delivered, for by it said end is practically always caught and given such a curvature and direction of movement as to be wound around the bobbin without being knotted or tied thereto, thereby not only avoiding loss of time in starting the winding operation, but making it practically certain that the end of the thread shall freely pull away from the spool as is required when the latter is in use in weaving.

I claim:

l. The combination in a bobbin winding machine of a driving roller; means for supporting a bobbin in frictional engagement with said roller; and means for causing a current of air adjacent one side of the bobbin in position todirect upwardly a thread end passed between the bobbin and the roller at the begimiing of a winding operation.

2. The combination in a bobbin winding machine of a driving roller; means for supporting a bobbin in frictional engagement with said roller; and means for causing a current of air adjacent one side of the bob` bin in position to direct upwardly a thread end passed between the bobbin and the roller at the beginning of a winding operay tion, the sameV consisting of a straight bar extending across the roller immediately adjacent the surface thereof.

3. The combination in a bobbin winding machine of a driving roller; means for supporting a bobbin in frictional engagement with said roller; and a bar mounted parallel with and immediately adjacent the bobbin in position to cause a thread end passed between the roller and the bobbin to be di rected upwardly at the beginning of a winding operation.

In witness whereof I aix my signature.

ALFRED I?. MCCOLLUM. 

